GS-EVB-AUD-BOOST-GS
Audio Boost Converter Evaluation Board
Technical Manual
____________________________________________________________________________________________________________________________________________
GS-EVB-AUD-BOOST-GS TM Rev. 221018 © 2022 GaN Systems Inc. www.gansystems.com 1
Please refer to the Evaluation Board/Kit Important Notice on page #14
GS-EVB-AUD-BOOST1-GS
210W Audio Boost Converter Power Source
GS-EVB-AUD-BOOST2-GS
300W Audio Boost Converter Power Source
Technical Manual
Visit www.gansystems.com for the latest version of this technical manual.
GS-EVB-AUD-BOOST-GS
Audio Boost Converter Evaluation Board
Technical Manual
____________________________________________________________________________________________________________________________________________
GS-EVB-AUD-BOOST-GS TM Rev. 221018 © 2022 GaN Systems Inc. www.gansystems.com 2
Please refer to the Evaluation Board/Kit Important Notice on page #14
DANGER
DO NOT TOUCH THE BOARD WHEN IT IS ENERGIZED AND ALLOW ALL
COMPONENTS TO DISCHARGE COMPLETELY PRIOR HANDLING THE BOARD.
HIGH VOLTAGE CAN BE EXPOSED ON THE BOARD WHEN IT IS CONNECTED
TO POWER SOURCE. EVEN BRIEF CONTACT DURING OPERATION MAY
RESULT IN SEVERE INJURY OR DEATH.
Please sure that appropriate safety procedures are followed. This evaluation kit
is designed for
engineering evaluation in a controlled lab environment and
should be handled by qualified personnel ONLY
. Never leave the board
operating unattended.
WARNING
Some components can be hot during and after operation.
There is NO built-in
electrical or thermal protection on this evaluation kit
. The operating voltage,
current, and component temperature should be monitored closely during
operation to prevent device damage.
CAUTION
This product contains parts that are susceptible to damage by electrostatic
discharge (ESD). Always follow ESD prevention procedures when handling the
product.
GS-EVB-AUD-BOOST-GS
Audio Boost Converter Evaluation Board
Technical Manual
____________________________________________________________________________________________________________________________________________
GS-EVB-AUD-BOOST-GS TM Rev. 221018 © 2022 GaN Systems Inc. www.gansystems.com 3
Please refer to the Evaluation Board/Kit Important Notice on page #14
Contents
1 GS-EVB-AUD-BOOST1/2-GS Description .................................................................................................. 5
1.1 Introduction ........................................................................................................................................ 5
1.2 Purpose ................................................................................................................................................ 5
1.3 Features of GS-EVB-AUD-BOOST1/2-GS .......................................................................................... 5
1.4 Features of GS-EVB-AUD-BOOST1-GS ............................................................................................. 5
1.5 Features of GS-EVB-AUD-BOOST2-GS ............................................................................................. 5
1.6 Benefits of GS-EVB-AUD-BOOST1/2-GS........................................................................................... 6
2 Technical Specifications ............................................................................................................................... 7
2.1 General Performance Data of GS-EVB-BOOST1-GS ......................................................................... 7
2.2 General Performance Data of GS-EVB-BOOST2-GS ......................................................................... 7
3 PCB Layout and Boards’ Connections ........................................................................................................ 7
4 Compatible SMPS: GS-EVB-AUD-SMPS2-GS ............................................................................................ 8
4.1 Description .......................................................................................................................................... 8
4.2 Features and Benefits .......................................................................................................................... 8
5 Ordering Information .................................................................................................................................. 9
GS-EVB-AUD-BOOST-GS
Audio Boost Converter Evaluation Board
Technical Manual
____________________________________________________________________________________________________________________________________________
GS-EVB-AUD-BOOST-GS TM Rev. 221018 © 2022 GaN Systems Inc. www.gansystems.com 4
Please refer to the Evaluation Board/Kit Important Notice on page #14
List of Figures
Figure 1 GS-EVB-AUD-BOOST1/2-GS Evaluation Boards .............................................................................. 6
Figure 2 PCB Layout and Module Connections ............................................................................................... 7
Figure 3 Gen2 GaN Switched-Mode Power Supply Evaluation Board GS-EVB-AUD-SMPS2-GS ............... 8
List of Tables
Table 1 P/N and Description ............................................................................................................................... 9
GS-EVB-AUD-BOOST-GS
Audio Boost Converter Evaluation Board
Technical Manual
____________________________________________________________________________________________________________________________________________
GS-EVB-AUD-BOOST-GS TM Rev. 221018 © 2022 GaN Systems Inc. www.gansystems.com 5
Please refer to the Evaluation Board/Kit Important Notice on page #14
1 GS-EVB-AUD-BOOST-GS Description
1.1 Introduction
This technical manual highlights the features and benefits of GaN Systems high voltage audio boost
converter reference design for manufacturers of stand-alone mono, stereo, and multi-channel automotive
and marine amplifiers. GaN Systems GS-EVB-AUD-BOOST1-GS is a 210-watt continuous / 300-watt peak
power source and GaN Systems GS-EVB-AUD-BOOST2-GS is a 300-watt continuous / 500-watt peak power
source. These two complete audio boost converter solutions include wide-range DC supply voltage input,
9VDC to 16VDC operation and are load dump compatible with differential-primary-drive transformer
topology.
1.2 Purpose
The purpose of these evaluation boards is to provide a complete comprehensive GaN audio boost
converter solution design for optimized sound quality, efficiency, size, and cost while enabling audio
design engineers create premium audio products more quickly at affordable prices while reducing time to
market.
1.3 Common Features of GS-EVB-AUD-BOOST-GS
• Complete Stand-alone Dual-Rail audio boost converter
• Load dump compatible with differential-primary-drive transformer topology
• Wide range DC supply voltage input of 9VDC to 16VDC operation
• Dual- GaN transformer-coupled topology
• Complete integrated non-intrusive short circuit protection, thermal protection, and Over-Current
protection
• Complete integrate non-intrusive Over-Voltage and Under-Voltage protection
• Graceful handling of complex and low impedance loads
• External Sync Capability
• Integrated Remote Power-On ‘Enable’
• Easy Integration with companion Class D Amplifier solutions GS-EVM-AUD-AMPOL1-GS , GS-
EVM-AUD-AMPCL1-GS, GS-EVB-AUD-AMP2-GS
• Output stages with 100V Enhancement Mode GaN Transistors GS61008P
1.4 Features of GS-EVB-AUD-BOOST1-GS
• 210W Continuous Duty
• 300W Peak Power
• +/- 26VDC Dual-Rail Output
1.5 Features of GS-EVB-AUD-BOOST2-GS
• 300W Continuous Duty
• 500W Peak Power
• +/- 32VDC Dual-Rail Output
GS-EVB-AUD-BOOST-GS
Audio Boost Converter Evaluation Board
Technical Manual
____________________________________________________________________________________________________________________________________________
GS-EVB-AUD-BOOST-GS TM Rev. 221018 © 2022 GaN Systems Inc. www.gansystems.com 6
Please refer to the Evaluation Board/Kit Important Notice on page #14
1.6 Common Benefits of GS-EVB-AUD-BOOST-GS
• Complete Boost Converter system design
• Serve smaller and more efficient Class-D audio systems
• Reduction in system size and weight
• Reduce time to market for Automotive and Marine markets’ design engineers
• Safe and stable design with graceful protection features against harmful failures
• Reliable design with Auto recovery features
• Optimization for cost
• Easy Integration with 200-watt turnkey open loop digital and closed loop analog Class-D Amplifier
modules and boards
• The properties of GaN allow for high current, high voltage breakdown and high switching
frequency. GaNPX small packaging of GS61008P enables low inductance & low thermal resistance
and provides very high efficiency power switching.
Figure 1 GS-EVB-AUD-BOOST-GS Evaluation Board
GS-EVB-AUD-BOOST-GS
Audio Boost Converter Evaluation Board
Technical Manual
____________________________________________________________________________________________________________________________________________
GS-EVB-AUD-BOOST-GS TM Rev. 221018 © 2022 GaN Systems Inc. www.gansystems.com 7
Please refer to the Evaluation Board/Kit Important Notice on page #14
2 Technical Specifications
2.1 General Performance Data of GS-EVB-BOOST1-GS
Parameter
Min.
Typ.
Max.
Unit
Notes
Output Voltage
-
2 x 26
-
VDC
Connector J2
Output Short-Circuit Current
-
12
-
A
2.2 General Performance Data of GS-EVB-BOOST2-GS
Parameter
Min.
Typ.
Max.
Unit
Notes
Output Voltage
-
2 x 32
-
VDC
Connector J2
Output Short-Circuit Current
-
12
-
A
3 PCB Layout and Boards’ Connections
Figure 2 PCB Layout and Module Connections
J1
J2
10.0”
7.00”
GS-EVB-AUD-BOOST-GS
Audio Boost Converter Evaluation Board
Technical Manual
____________________________________________________________________________________________________________________________________________
GS-EVB-AUD-BOOST-GS TM Rev. 221018 © 2022 GaN Systems Inc. www.gansystems.com 8
Please refer to the Evaluation Board/Kit Important Notice on page #14
4 Companion Class D Amplifier solutions
4.1 Description
GaN Systems Complete Boost Converter system design is easily integrated with GS-EVM-AUD-
AMPOL1-GS which is 50W per Channel x 4 into 8Ω turnkey open loop Digital Class-D Amplifier Module.
Easy integration is also possible with GS-EVM-AUD-AMPCL1-GS which is 200W per Channel x 2 into 8Ω
turnkey closed loop Analog Class-D Amplifier Module, and GS-EVB-AUD-AMP2-GS which 200W per
channel x 2 into 8Ω Stereo Class-D Amplifier Evaluation Board.
4.2 Features and Benefits
• Complete Stand-alone high-performance Class-D Audio Amplifier Modules
• Enables smaller and more efficient Class-D audio systems
• Superior sounding and very high audio quality
• Closest audio signal to the sound source
• Reduction in system size and weight
• Reduction in heat flow
• Safe and stable design with graceful protection features against harmful failures
• Reliable design with Auto recovery features
• Optimization for cost
• Easy attachment to Chassis
• Digital or Analog integrated I2S Audio Input
• Digital or Analog integrated S/PDIF Coaxial Audio & Auxiliary Inputs
• +/- 32VDC Power Supply requirement
• Fully programmable and integrated DSP solution
• SNR & DR higher than 114dB
• THD+N less than 0.01%
• No heat sink required
• Efficiency higher than 96%
• Guarded handling of complex and low impedance loads
Figure 3
GS-EVM-AUD-AMPOL1-GS
Figure 4
GS-EVM-AUD-AMPCL1-GS
Figure 5
GS-EVB-AUD-AMP2-GS
GS-EVB-AUD-BOOST-GS
Audio Boost Converter Evaluation Board
Technical Manual
____________________________________________________________________________________________________________________________________________
GS-EVB-AUD-BOOST-GS TM Rev. 221018 © 2022 GaN Systems Inc. www.gansystems.com 9
Please refer to the Evaluation Board/Kit Important Notice on page #14
5 Ordering Information
The ordering information are listed in Table 1 below:
Where to buy | GaN Systems
Table 1 P/N and Description
PART NUMBER DESCRIPTION
GS-EVB-AUD-BOOST1-GS
Power Source: 210W Audio Boost Converter
9-16VDC Input, +/-26VDC Dual-Rail Output
GS-EVB-AUD-BOOST2-GS
Power Source: 300W Audio Boost Converter
9-16VDC Input, +/- 32VDC Dual-Rail Output
GS-EVM-AUD-AMPOL1-GS
Amplifier: 50W per Channel x 4 into 8Ω
Turnkey Open Loop Digital Class-D Amplifier Module
GS-EVM-AUD-AMPCL1-GS
Amplifier: 200W per Channel x 2 into 8Ω
Turnkey Closed Loop Analog Class-D Amplifier Module
GS-EVB-AUD-AMP2-GS
Amplifier: 200W per channel x 2 into 8Ω
Stereo Class-D Amplifier Evaluation Board
GS61008P 100V, 90A, GaN E-mode, GaNPX® package, Bottom-side cooled
GS-065-011-2-L 650V, 11A, GaN E-mode, 8x8 PDFN, Bottom-side cooled
GS-065-030-2-L 650V, 30A, GaN E-mode, 8x8 PDFN, Bottom-side cooled
GS-EVB-AUD-BOOST-GS
Audio Boost Converter Evaluation Board
Technical Manual
____________________________________________________________________________________________________________________________________________
GS-EVM-AUD-AMPOL1-GS TM Rev. 221018 © 2022 GaN Systems Inc. www.gansystems.com
10
Please refer to the Evaluation Board/Kit Important Notice on page #10
Evaluation Board/Kit Important Notice
GaN Systems Inc. (GaN Systems) provide the enclosed product(s) under the following AS IS conditions:
This evaluation board/kit being sold or provided by GaN Systems is intended for ENGINEERING
DEVELOPMENT, DEMONSTRATION, and OR EVALUATION PURPOSES ONLY and is not considered
by GaN Systems to be a finished end-product fit for general consumer use. As such, the goods being sold
or provided are not intended to be complete in terms of required design-, marketing-, and/or
manufacturing-related protective considerations, including but not limited to product safety and
environmental measures typically found in end products that incorporate such semiconductor components
or circuit boards. This evaluation board/kit does not fall within the scope of the European Union directives
regarding electromagnetic compatibility, restricted substances (RoHS), recycling (WEEE), FCC, CE, or UL,
and therefore may not meet the technical requirements of these directives, or other related regulations.
If this evaluation board/kit does not meet the specifications indicated in the Technical Manual, the board/kit
may be returned within 30 days from the date of delivery for a full refund. THE FOREGOING WARRANTY
IS THE EXCLUSIVE WARRANTY MADE BY THE SELLER TO THE BUYER AND IS IN LIEU OF ALL
OTHER WARRANTIES, EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING ANY WARRANTY OF
MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE. EXCEPT TO THE EXTENT OF
THIS INDEMNITY, NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR ANY INDIRECT,
SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES. The user assumes all responsibility and
liability for proper and safe handling of the goods. Further, the user indemnifies GaN Systems from all
claims arising from the handling or use of the goods. Due to the open construction of the product, it is the
user’s responsibility to take all appropriate precautions concerning electrostatic discharge. No License is
granted under any patent right or other intellectual property right of GaN Systems whatsoever. GaN
Systems assumes liability for applications assistance, customer product design, software performance, or
infringement of patents or any other intellectual property rights of any kind. GaN Systems currently
services a variety of customers for products around the world, and therefore this transaction is not
exclusive. Please read the Technical Manual and, specifically, the Warnings and Restrictions notice in the
Technical Manual before handling the product. Persons handling the product(s) must have electronics
training and observe good engineering practice standards. This notice contains important safety
information about temperatures and voltages. For further safety concerns, please contact GaN Systems’
Engineering Team.
GaN Systems Inc.
www.gansystems.com
Important Notice – Unless expressly approved in writing by an authorized representative of GaN Systems,
GaN Systems components are not designed, authorized, or warranted for use in lifesaving, life-sustaining,
military, aircraft, or space applications, nor in products or systems where failure or malfunction may result
in personal injury, death, or property or environmental damage. The information given in this document
shall not in any event be regarded as a guarantee of performance. GaN Systems hereby disclaims any or all
warranties and liabilities of any kind, including but not limited to warranties of non-infringement of
intellectual property rights. All other brand and product names are trademarks or registered trademarks
of their respective owners. Information provided herein is intended as a guide only and is subject to change
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